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当前位置: 首页 > 文章 > 黄花蒿精油对玉米象成虫体内酶活力的影响 吉林农业大学学报 2010,32 (6) 18-23
Position: Home > Articles > Effect of Essential Oil Extracted from Artemisia annua L. on Activities of Several Enzymes in Sitophihus zeamais Journal of Jilin Agricultural University 2010,32 (6) 18-23

黄花蒿精油对玉米象成虫体内酶活力的影响

作  者：
尚利娜;袁海滨;魏春艳;任炳忠
单  位：
东北师范大学生命科学学院
关键词：
玉米象;黄花蒿精油;酶活力
摘  要：
用5种体积分数的黄花蒿精油处理玉米象成虫,测定了处理后不同时间其体内几种酶活力的变化情况。与对照组相比,所有处理组的乙酰胆碱酯酶(AChE)活力在处理后2h内均大幅下降,且随着处理体积分数的增大活力降低;处理4h后,5%～20%处理组的活力有所恢复。α-乙酸萘酯酶(α-NACarE)活力在处理后2～12h内呈下降趋势,处理后24h活力逐渐恢复。谷胱甘肽-S-转移酶(GSTs)活力在处理后2h时降低,处理后4h活力有所恢复。过氧化物酶(POD)活力在2h内均大幅下降;处理4h后,5%～20%处理组的POD活力有所恢复,1%处理组在处理后8h活力显著高于对照组。试验结果表明,在试虫接触药剂的初期解毒酶活性受到抑制,而后由于机体的抵抗作用,解毒酶活力有所恢复,反映出玉米象成虫对黄花蒿精油存在解毒机制。但是随着精油体积分数的增大,黄花蒿精油较强的毒害作用抑制了解毒酶的活性,解毒酶活力反而下降。
译  名：
Effect of Essential Oil Extracted from Artemisia annua L. on Activities of Several Enzymes in Sitophihus zeamais
作  者：
SHANG Li-na1,YUAN Hai-bin1,2,WEI Chun-yan1,3,REN Bing-zhong11. School of Life Sciences,Northeast Normal University,Changchun 130024,China; 2. College of Agronomy,Jilin Agricultural University,Changchun 130118,China; 3. Jilin Entry-Exit Inspection and Quarantine Bureau,Changchun 130062,China
关键词：
Sitophihus zeamais; essential oil of Artemisia annua L.; enzyme activity
摘  要：
The activities of acetylcholinesterase (AChE),carboxylesterase (α-NACarE),glutathione S-transferase (GSTs) and peroxidase (POD) of Sitophihus zeamais contacted with a series of concentration of essential oil (1%,5%,10%,15%,20%) extracted from Artemisia annua L. were measured at 2,4,8,12,24 h. Compared with the control group,the AChE activities of all treatment groups significantly decreased at 2 h. When reaching 4 h,the activities of 5% treatment group to 20% treatment group were recovered. The α-NACarE activities of all treatment groups decreased within 2,4,8,12 h until the activities gradually recovered at 24 h. The GSTs activities of all treatment groups reduced at 2 h and resumed after 4 h. The POD activities of all treatment groups significantly decreased at 2 h,the activities of 5% treatment group to 20% treatment group were in the recovery after 4 h,after 8 h,the activity of 1% treatment group was significantly higher than the control group. The results showed that in the early stage when contacting with the essential oil of A. annua,the detoxification enzyme activities of S. zeamais were inhibited. Along with the resistance of the body,detoxification enzyme activities restored. It reflected that the S. zeamais had detoxification mechanism on the essential oil of A. annua,but with the increase of concentration of essential oil,the activities of detoxification enzymes became worse. This study helps to understand the insecticide mechanisms of essential oil.

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